Ключевые слова: boiler, checking, chemical, controlling, earmuff, electricity, energy, engineer, equipment, expert, facility, factory, factory building, gas, hardhat, heat, heating, heating factory, heating plant, helmet, industrial, industry, inspecting, insulation, interior, man, modern, natural gas, pipe, pipeline, plant, pump, resources, steam, technician, technology, temperature, thermal, thermal energy, valve, water, work wear, worker, working,